The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-596-1527, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hitachi Rail Sts Usa Inc Dba Us&s Merger Sub Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-596-1527 |
| Primary Part Number | R100045P |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hitachi Rail Sts Usa Inc Dba Us&s Merger Sub Inc |
| Status | ACTIVE |
| Width Across Flats | 0.562 INCHES NOMINAL IN |
| Thread Series | UNEF |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Nut Height | 0.125 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 303 OVERALL |
| Bearing Surface Type | CHAMFERED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| R100045P PRIMARY | Hitachi Rail Sts Usa Inc Dba Us&s Merger Sub Inc (USA) |
NSN 5310-00-596-1527 is a Nut,plain,hexagon, manufactured by Hitachi Rail Sts Usa Inc Dba Us&s Merger Sub Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-596-1527 has 1 manufacturer part number on file: R100045P (Hitachi Rail Sts Usa Inc Dba Us&s Merger Sub Inc).
Key specifications for R100045P: Width Across Flats: 0.562 INCHES NOMINAL IN; Thread Series: UNEF; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.